View clinical trials related to Embolism.
Filter by:Aim of the work: 1. To compare conventional medical therapy versus catheter-directed therapy in intermediate high risk acute pulmonary embolism. 2. To define predictors of progression from intermediate to high-risk in medically-treated patients for ideal timing for intervention.
This study is aimed to validate the existing stroke risk stratification model for patients with atrial fibrillation (AF) (CHA2DS2-VASc Score, CHADS2 Score, ATRIA score, ABC score, etc.) and establish a new stroke risk assessment model using a nationwide AF -specific registry in China.
Evaluation of initial safety and clinical feasibility of the Viper Catheter System for thrombectomy in acute submassive pulmonary embolism (PE).
The purpose of this study is to assess the effect of three different strategies to inject at reduced volume of contrast medium in Computed Tomography Pulmonary Angiography (CTPA). 330 patients referred for CTPA are randomized to receive either a low-concentration, a low-volume or a saline-diluted injection. Effects on the level and homogeneity of contrast enhancement are measured and compared between groups.
PE-TRACT is an open-label, assessor-blinded, randomized trial, aiming to compare catheter-directed therapy (CDT) and anticoagulation (CDT group) with anticoagulation alone (No-CDT) in 500 patients with submassive PE, proximal pulmonary artery thrombus and right ventricular dilation.
The purpose of this study is to evaluate whether a home rehabilitation program after hospitalization for acute pulmonary embolism (PE) improves clinical outcomes at 3 months compared to usual care. Daily physical activity tasks that incorporate heart rate monitoring will be sent through email or text. This information could help improve the management of acute PE.
To research and develop new state of the art diagnostic biomarkers on the LumiraDx Platform that are comparable to the approved gold standard reference methods and will radically enhance clinicians and patients ability to monitor health conditions and improve outcomes by delivering the results near patient at the point of care.
Potential outcomes after PE occur on a spectrum: complete recovery, exercise intolerance from deconditioning/anxiety, dyspnea from concomitant cardiopulmonary conditions, dyspnea from residual pulmonary vascular occlusion, chronic thromboembolic disease and chronic thromboembolic pulmonary hypertension. Although a battery of advanced diagnostic tests could distinguish each of those conditions, the yield of individual tests among all post- PE patients is low enough that routine testing of all PE patients is not typically performed. Although the various possible post-PE outcomes have enormous implications for patient care, they are rarely distinguished clinically. Perhaps for this reason, chronic conditions after PE are rarely (if ever) used as endpoints in randomized clinical trials of acute PE treatment. The proposed project will validate a clinical decision tree to distinguish among the various discrete outcomes cost-effectively through a hierarchical series of tests with the acronym SEARCH (for symptom screen, exercise function, arterial perfusion, resting heart function, confirmatory imaging and hemodynamics). Each step of the algorithm sorts a subset of patients into a diagnostic category unequivocally in a cost-effective manner. The categories are mutually exclusive and collectively exhaustive, so that each case falls into one, and only one, category. Each individual test used in the algorithm has been clinically validated in pulmonary embolism patients, including the cardiopulmonary exercise test (CPET) technique that the investigators developed and validated. However, the decision tree approach to deploying the tests has not yet been validated. Aim 1 will determine whether the SEARCH algorithm will yield concordant post-PE diagnoses when multiple reviewers independently evaluate multiple cases (reliability). Aim 2 will determine whether the post-PE diagnoses are stable, according to the SEARCH algorithm, between the first evaluation and the subsequent one six months later (validity).
The FLARE-FT2 confirmatory study is a prospective, single-arm, multicenter study of the FlowTriever2 Catheter.
The study aim is to determine whether electrical impedance tomography (EIT) is equivalent in the detection of pulmomary emboli compared to Computed Tomographic Angiography (CTA). EIT is a non-invasive, non-ionizing functional imaging technique that can be performed at bedside. Electrical impedance tomography data will be collected on individuals undergoing a CTA scan of the chest at Medical Center of the Rockies (MCR). The primary outcome measure is to assess whether assessment by CTA corresponds with EIT in detection of pulmonary emboli. The study will include up to 63 participants. EIT data will be collected for up to 20 minutes during tidal breathing and for approximately five to ten seconds during breath-holding.